Research on the rapid construction platform of coal mine GIS one-map

Currently, the engineering thematic maps used in coal mines are mostly CAD drawings. Extracting data efficiently from CAD drawings and quickly organizing them into geographic information system (GIS) services, thereby supporting the creation of mine spatial objects and business attribute expansion, integrating real-time safety production data are the key to building a coal mine GIS one-map. The implementation process of converting CAD drawings into GIS services based on the ArcGIS platform is cumbersome. The ArcGIS platform has high costs and cannot run well across platforms. In order to solve the above problems, a coal mine GIS one-map rapid construction platform has been designed. The platform includes three major functional modules: CAD drawing management, map service publishing, and thematic map management. The CAD drawing management module is used for basic information management and status tracking of drawings. The map service publishing module is used for map packaging and online preview. The thematic map management module is used for map service management, mine object creation, and attribute extension. Based on the open design alliance (ODA), the Teigha for Java SDK is used to achieve precise recognition and fast and accurate extraction of all elements in CAD drawings. By constructing a hierarchical description model for coal mine CAD drawing data based on GIS data features, rapid storage of all element data in CAD drawings has been achieved. Following the object-oriented design approach, a web-based coal mine CAD drawing dataset storage interface and thematic map service publishing platform are developed under the Spring Cloud framework, achieving rapid construction of coal mine GIS one-map. Taking the mining engineering plan of a certain coal mine as an example, traditional methods and fast construction platforms are used to construct coal mine GIS one-map. The comparison results show that the fast construction platform can significantly improve the efficiency of constructing coal mine GIS one-map, providing a spatiotemporal digital base for the intelligent construction of coal mines.